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Natural Untreated Gemstones

Discover genuine untreated gemstones selected for natural beauty, rarity, and authenticity.

Natural Untreated Gemstones Weight
Natural Untreated Gemstones Size
Natural Untreated Gemstones Clarity
Natural Untreated Gemstones Price
Natural Untreated Gemstones Treatment

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color Natural Untreated Gemstones
Black Natural Untreated Gemstones
Blue Natural Untreated Gemstones
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Golden Natural Untreated Gemstones
Gray Natural Untreated Gemstones
Green Natural Untreated Gemstones
Multicolor Natural Untreated Gemstones
Orange Natural Untreated Gemstones
Pink Natural Untreated Gemstones
Purple Natural Untreated Gemstones
Red Natural Untreated Gemstones
Turquoise Natural Untreated Gemstones
Violet Natural Untreated Gemstones
White Natural Untreated Gemstones
Yellow Natural Untreated Gemstones
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0.37ct Yellow Chrysoberyl Cat'S Eye, Oval, Translucent

0.37ct Yellow Chrysoberyl Cat'S Eye, Oval, Translucent

4.1 x 3.8 mm

$ 11.06

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1.12ct Purple Spinel, Pear Shape, VS

1.12ct Purple Spinel, Pear Shape, VS

8.5 x 5.6 mm

$ 108.76

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1.25ct Yellow Beryl, Oval, VS

1.25ct Yellow Beryl, Oval, VS

8 x 6 mm (calibrated)

$ 24.90

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1.87ct Yellow Beryl, Trillion, VVS-VS

1.87ct Yellow Beryl, Trillion, VVS-VS

9 x 9 mm (calibrated)

$ 44.70

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0.84ct Yellow Beryl, Pear Shape, VS

0.84ct Yellow Beryl, Pear Shape, VS

8.1 x 5.2 mm

$ 18.41

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8.32ctw White Topaz, Square, VVS

8.32ctw White Topaz, Square, VVS

5 x 5 mm (calibrated)

$ 69.68

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1.36ct Yellow Beryl, Trillion, VS

1.36ct Yellow Beryl, Trillion, VS

8 x 8 mm (calibrated)

$ 32.51

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3.36ct Pink Morganite, Round, Translucent

3.36ct Pink Morganite, Round, Translucent

9 mm (calibrated)

$ 36.45

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1.53ct Yellow Beryl, Oval, VVS

1.53ct Yellow Beryl, Oval, VVS

9 x 7 mm (calibrated)

$ 30.48

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1.72ctw Multicolor Andalusite, Oval, VS
Andalusite Product Video (390559)

1.72ctw Multicolor Andalusite, Oval, VS

5 x 3 mm (calibrated)

$ 91.89

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1.06ct Purple Spinel, Oval, VS

1.06ct Purple Spinel, Oval, VS

6.6 x 5.4 mm

$ 119.12

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0.89ct Yellow Beryl, Oval, VVS-VS

0.89ct Yellow Beryl, Oval, VVS-VS

7.8 x 5.7 mm

$ 22.16

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8.31ctw White Topaz, Square, VVS

8.31ctw White Topaz, Square, VVS

5 x 5 mm (calibrated)

$ 69.52

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0.48ct Pink Morganite, Pear Shape, VVS-VS

0.48ct Pink Morganite, Pear Shape, VVS-VS

8 x 3.8 mm

$ 28.93

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3.33ctw Multicolor Andalusite, Oval, VS-SI

3.33ctw Multicolor Andalusite, Oval, VS-SI

6 x 4 mm (calibrated)

$ 163.09

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14.02ctw Black Spinel, Round, Opaque

14.02ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 46.08

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1.58ct Yellow Beryl, Round, VVS

1.58ct Yellow Beryl, Round, VVS

9 mm (calibrated)

$ 31.47

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1.09ct Pink Morganite, Pear Shape, VS

1.09ct Pink Morganite, Pear Shape, VS

8.4 x 6.4 mm

$ 95.53

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10.68ctw Pink Morganite, Oval, Translucent

10.68ctw Pink Morganite, Oval, Translucent

12 x 10 mm (calibrated)

$ 106.37

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5.44ct Pink Morganite, Pear Shape, Translucent

5.44ct Pink Morganite, Pear Shape, Translucent

14 x 10 mm (calibrated)

$ 22.58

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0.51ct Green Cat'S Eye Alexandrite, Oval, Opaque

0.51ct Green Cat'S Eye Alexandrite, Oval, Opaque

5.5 x 3.7 mm

$ 84.66

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1.04ct Pink Morganite, Pear Shape, VVS-VS

1.04ct Pink Morganite, Pear Shape, VVS-VS

9.5 x 5.4 mm

$ 113.94

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3.63ctw Yellow Beryl, Oval, VVS

3.63ctw Yellow Beryl, Oval, VVS

10 x 8 mm (calibrated)

$ 86.77

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1.16ct Purple Spinel, Cushion, VS

1.16ct Purple Spinel, Cushion, VS

6.4 x 6.3 mm

$ 127.09

View Gem
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Why Buy Natural Untreated Gemstones from GemSelect?

Why Choose Untreated Gemstones?

Untreated gemstones are valued for their natural color and clarity without artificial enhancement. Many buyers prefer these gems for authenticity, rarity, and long-term value.

Natural Loose Untreated Gems Online

Shop loose untreated gemstones online at GemSelect with confidence. Browse sapphires, rubies, spinels, aquamarine, garnet, tourmaline, and more with full disclosure.

Natural Untreated Gemstones for Jewelry and Collecting

Untreated Gemstones for Jewelry

Natural untreated gems are excellent for rings, earrings, pendants, and custom jewelry. Their original beauty makes every piece unique and meaningful.

Popular Untreated Gemstone Types

Popular choices include untreated sapphire, ruby, spinel, garnet, tourmaline, zircon, aquamarine, and many collector stones in a wide range of colors.

Certified Natural Gemstones

Many buyers choose untreated gemstones with gemological reports for added confidence. Certification can confirm identity and indicate whether treatments are present.

Collector Quality Untreated Gems

Collectors appreciate untreated gemstones because naturally fine examples are rarer than treated material. These stones can be especially desirable when color and clarity are strong.

Calibrated Untreated Gemstones

We also offer calibrated untreated gemstones in popular sizes suitable for standard jewelry settings, making custom designs easier and faster.

Worldwide Shipping from GemSelect

GemSelect offers secure online ordering, detailed product images, and worldwide delivery so you can shop untreated gemstones from anywhere.

Learn more about gemstone treatments, identification, and care on our Gemstone Information Pages.

FAQs

What does untreated gemstone mean?

An untreated gemstone has not undergone enhancement processes such as heating, dyeing, filling, coating, or diffusion to improve appearance.

Are untreated gemstones more valuable?

Often yes, especially in sapphire, ruby, and other premium gems where fine untreated stones are rarer than treated examples.

How can I verify a gemstone is untreated?

Independent laboratory certification is the best way to verify whether a gemstone is natural and untreated.

Which gemstones are commonly sold untreated?

Spinel, garnet, zircon, tourmaline, aquamarine, and some sapphires or rubies are often available untreated depending on source and quality.

Are all untreated gemstones natural?

Natural untreated gemstones are mined stones that have not been enhanced after cutting. Always buy from trusted sellers with clear disclosure.

GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

hassle free experience.

Posted By Jhidron in October, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Very good and simple exchange

Posted By Waylon in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Very large selection from affordable to high end I will be coming back to shop again!

Posted By GreenGator in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Always get a nice gemstone. Just like the picture. Never disappointed

Posted By Ron T in June, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Easy to conduct search, good amount of stock to select from along with variety of prices.

Posted By Que in June, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Always a good quality stone. Priced fairly and shipped promptly. Answers emails quickly

Posted By Ron T in November, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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